JPH0427622Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an apparatus for taking out and demolding a concrete molding from a formwork used when manufacturing a concrete molding such as a threaded shaft.

"Prior Art" Concrete screw-shaped shafts are known that are screwed into the ground for the purpose of ground reinforcement, etc. when constructing the foundation of a structure.

Here, FIG. 8 shows an example of the manufacturing process of the threaded resistor.

The formwork 1 used in the manufacturing process shown in FIG. To manufacture the
First, the formwork 1 is set on the base 2, concrete is poured into the formwork 2 from the concrete hopper 4, and then the base 2 and the formwork 1 are carried into the concrete curing device 5. After the concrete is cured, the formwork 1 taken out from the curing device 5 is set in the mold opening device 6 to expand the formwork 1. After that, the formwork 1 is moved inside the pedestal 7 and the required equipment is installed. The concrete molded body S is manually taken out from the formwork 1 using a machine and demolded, and the concrete molded body S is moved to a product recovery line R and recovered as a product. The formwork 1 after taking out the concrete molded body S is moved to the side of the pedestal 8, reclosed, and set in the concrete casting machine 3 again to be used repeatedly for molding. .

``Problem that the invention attempts to solve'' By the way, in the manufacturing process shown in FIG. It is necessary to horizontally install the concrete molded body S, which is in an upright state inside the product recovery line R, on the conveyor C of the product recovery line R. Conventionally, this work has been done manually by workers using the necessary equipment. ,
Concrete molded body S is a heavy product, and because it is mass produced, the repetitive work of demolding and carrying out is an extremely heavy burden on workers, so mechanization and automation of demolding work is required. is required.

The present invention has been developed in view of the above-mentioned circumstances, and it is possible to automatically perform the demolding work of a concrete molded body mechanically without relying on human power, thereby eliminating the burden on workers associated with demolding work. The purpose is to provide a demolding device that can do this.

"Means for Solving the Problems" In order to solve the problems mentioned above, the present invention has a vertically divided cylindrical shape that can be expanded and is constructed by connecting a plurality of circular arc plates so as to be rotatable with each other. , a formwork used to form a long concrete molded body, and a device for taking out and demolding the concrete molded body from the formwork, which is installed on the side of the movement path of the formwork. a pedestal, a rotating frame provided on the pedestal so as to be able to freely rotate up and down facing the moving path side, a moving mechanism attached to the pedestal to bring the rotating frame close to the formwork, and The gripping claw is attached to the moving frame and grips the concrete molded body.

"Operation" The gripping claw approaches the formwork by the moving mechanism, grips the concrete molded body inside the formwork, and then the gripping claw that grips the concrete molded body leaves the formwork to remove the concrete molded body from the formwork. At the same time as it is removed, the rotating frame rotates downward to move the concrete molded body to the next line.

"Embodiment" Figures 1 to 7 show a demolding device A according to an embodiment of the present invention.
In the manufacturing process of a concrete molded body such as a threaded shaft shown in FIG. The demolding operation for removing the concrete molded body S from the concrete molded body S is automatically performed. Note that the demolding device A of this embodiment is used in the conventional manufacturing process shown in FIG. This is the type of equipment that will be adopted.

Before explaining the demolding device A, the mold 1 will be explained. As shown in FIGS. 6 and 7, this formwork 1 has a vertically divided cylindrical shape composed of three arc plates 10, 11, and 12, and each arc plate 1
A threaded groove 9 is formed on the inner surface of each arc plate 10, 11, 12, and each arc plate 10, 11, 12 has a
As shown in FIG. 7, the connection mold 13 integrated on the outer surface of the arc plate 10 and the connection piece 15 integrated on the outer surface of the arc plate 11 are connected by pins, and the connection mold 13 is integrated with the outer surface of the arc plate 10. The connecting piece 14 and the connecting piece 16 integrated on the outer surface of the arcuate plate 12 are connected with pins, so that the opening can be opened on double doors. A locking lever 20 is mounted on the upper surface of the arcuate plate 10 by means of a support bracket B, with the tip 20a positioned above the center of the formwork 1.
is supported so as to be able to rotate up and down, and a spring 21 is attached to the support bracket B so as to bias the tip 20a of the locking lever 20 downward. A locking protrusion 22 is formed on the lower surface of the tip of the locking lever 20. This locking protrusion 2
2 is for inserting into the upper opening of a reinforcing pipe (in this example, a square pipe) 23 buried in the center of the concrete molded body S to lock the concrete molded body S, as shown in FIG. The concrete molded body S is prevented from falling in the formwork 1 in the expanded state as shown in FIG.

On the other hand, as shown in FIGS. 1 and 2, the demolding device A includes a pedestal 30 constructed by assembling frame materials, and a first
The main components include a lever release mechanism 32 provided via a moving mechanism 31, and a gripping mechanism 34 provided below the lever release mechanism 32 via a second moving mechanism 33.

As shown in FIG. 1, the pedestal 30 includes a plurality of columns 35, an upper frame 36 in the shape of a rectangular frame that is horizontally integrated with the upper ends of these columns 35, and a column that extends horizontally below the upper frame 36. It has a three-dimensional frame-like structure mainly composed of a rectangular guide frame 37 that is integrated with the mount 30.
The frame material on the long side of the upper frame 36 is oriented at right angles to the movement path K of the formwork 1, and the frame 30
It is installed with one side close to the movement path K.

Further, an upper piece of the upper frame 36,
On the moving path K side, a trolley-shaped moving frame 40 that moves along the upper frame 36 is installed so as to be able to freely approach the moving path K, and a support member 41 that is integrated into the center of the upper frame 36 is installed. A cylinder device 42 for traveling the movable frame 40 is provided at the movable frame 40, and the movable frame 40 is configured to be able to approach the moving path K by the operation of the cylinder device 42. Thus, a first moving mechanism 31 is configured.

At the top of the movable frame 40, a pair of left and right lever release mechanisms 32 are provided so as to face the formworks 1, 1 when the base 2 is positioned on the side of the pedestal 30 as shown in FIG. It is provided. As shown in FIG. 1 and FIGS. 4 and 5, this lever release mechanism 32 includes a pair of support plates 43 that are erected on a moving frame 40 and extend toward the moving path K of the formwork 1. The release cylinder 46 is attached to a support member 44 provided by connecting the tips of these support plates 43, and has a piston rod 45 directed downward.

On the other hand, inside the guide frame 37,
A trolley-shaped running frame 47 that runs toward the moving route K along a guide frame 37 is installed on the moving route K side of the formwork 1, and the guide frame 37 has a cylinder that makes the running frame 47 run. A device 48 is installed, and the cylinder device 48 and the traveling frame 47 constitute the second moving mechanism 33.

A gripping mechanism 34 having a gripping hand 50 is provided on the traveling frame 47. First, as shown in FIG. 2, a cylinder device 52 for lifting and lowering is attached to the upper end of a support plate 51 erected on the traveling frame 47 facing the moving path K side, with the piston rod facing downward. A horizontally long rectangular parallelepiped-shaped mounting member 53 is suspended horizontally by 52 as shown in FIG. On both sides of this mounting member 53, there are 4
Two rollers 53a are arranged vertically, and both ends of the mounting member 53 are connected to the traveling frame 47.
There is a moving path K on both sides of the width direction (both upper and lower sides in Fig. 1).
A guide bar 55 is sandwiched between the guide plates 54 that protrude toward the guide plate 54, and a guide bar 55 that protrudes vertically from the side surface of each guide plate 54 is sandwiched between the four rollers 53a as shown in FIG. provided, said mounting member 5
3 is constructed so that the guide bar 55 can be moved up and down between these rollers 53a by expansion and contraction of the piston rod of the cylinder device 52.

Further, a rotating frame 56 is attached to the mounting member 53 so as to be able to freely rotate up and down toward the moving route K side, and both upper and lower ends of the rotating frame 56 when it is stood up as shown in FIG. Formwork 1,
Gripping hands 50, 50 are attached to face 1. That is, the gripping hand 50 is
As shown in FIG. 2, when the rotating frame 56 is in an upright state, a pair of plate-shaped gripping claws 57 are attached to the upper and lower parts of the rotating frame 56, spaced apart from each other horizontally with pins. , connecting plates 58, 58 connecting the vertically opposing gripping claws 57, and a gripping cylinder device 59 provided between these,
Tuning device 60 provided between gripping claws 57, 57
By operating the cylinder device 59, the distance between the gripping claws 57, 57 can be adjusted. In addition, the gripping claw 57
As shown in FIG. 3, a protective pad 57a made of an elastic material is attached to the tip.

On the other hand, as shown in FIG. 2, the synchronizing device 60 is configured to operate between the gripping claws 57, 57 located above and between the gripping claws 57, 57 located below when the rotating frame 56 is erected. Rotating frame 5 for each
6 is attached to a mounting plate 60A connected to the mounting plate 60A. That is, the tuning device 60 includes a cam member 61 that is horizontally rotatably attached to the mounting plate 60A, and link pieces 62, 62 that are pin-coupled to the end of the cam member 61 and the gripping claw 57, When the gripping claws 57, 57 are opened and closed by the operation of the cylinder device 59, the movements of the gripping claws 57, 57 are synchronized. Note that since this tuning device 60 has a known configuration, further detailed explanation will be omitted.

Incidentally, on the side of the support plate 51 and above the traveling frame 47, substantially L-shaped mounting plates 65, 65 are provided upright, extending in a direction away from the moving path K. The cylinder device 6 is connected to the tips of the mounting plates 65, 65 and the lower end of the rotating frame 56 when the rotating frame 56 is in an upright position as shown in FIG.
6 is provided, and by operating this cylinder device 66, the rotating frame 56 can be rotated up and down.

Next, a case will be described in which a demolding operation is performed using the demolding apparatus A having the above configuration.

In the process shown in FIG. 8, the demolding device A having the above configuration forms a concrete molded body S inside the formwork 1, expands the formwork 1 using the mold opening device 6, and then performs demolding. Use when doing so.

That is, first, the formworks 1, 1 installed on the base 2 are moved along the movement path K by the transport device while being expanded by the mold opening device 6 as shown in FIG. 7, and the molds are removed. It is stopped at the side of device A as shown in FIG. In addition, in the case of the formworks 1, 1 expanded by the mold opening device 6, the reinforcing pipe 23 buried in the concrete molded body S formed inside the formwork 1 is connected to the locking protrusion of the locking lever 20. 22 holds down and prevents the concrete molded body S from falling.

When the forms 1, 1 have stopped to the side of the demolding device A, the cylinder device 48 is first operated to move the traveling frame 47 toward the forms 1, 1, and when the tips of the gripping claws 57, 57 reach both sides of the concrete molded body S as shown in Fig. 1, the traveling frame 47 is stopped. Next, the cylinder device 59 is operated to grip the upper and lower parts of the concrete molded body S with the four gripping claws 57. Here,
A cylinder device 59 for opening and closing the four gripping jaws 57
In the gripping operation, the left and right gripping jaws 5 are connected by drawing the connecting plates 58, 58 together in a state where the rotating frame 56 is raised as shown in FIG.
7, the distance between the cylinder devices 5
9 is provided at the center of the four gripping jaws 57,
Since an equal force is applied to each gripping claw 57 and the gripping claws 57 operate in unison due to the action of the synchronizing device 60, the four gripping claws 57 can be pressed with equal force against the periphery of the concrete molded body S to grip it. Furthermore, during this gripping operation, the gripping claws 57 grip the concrete molded body S via the protective pad 57a, so that the concrete molded body S can be gripped without damaging its surface.

Subsequently, the cylinder device 42 is operated to move the movable frame 40 to the formworks 1, 1 side, and the support plate 4
The release cylinder 46 at the tip of No. 3 is positioned above the locking lever 20 of the formwork 1. Then, the release cylinder 46 is operated to rotate the locking lever 20 by the piston rod 45 to release the locking of the concrete molded body S.

Next, the traveling frame 47 is moved by the cylinder device 48.
is moved away from the formwork 1 to separate the concrete formed body S from the formwork 1, and the cylinder device 66 is operated to separate the concrete formed body S.
At the same time, the rotating frame 56 is rotated downward and moved onto the pile conveyor 70 shown by the two-dot chain line in FIG. During this movement, the vertical position of the concrete molded body S is also adjusted by adjusting the vertical position of the mounting member 53 using the cylinder device 52 so that the concrete molded body S does not come into contact with the pile conveyor 70. Through this operation, the concrete molded body S is
can be transported without collision.

Next, the gripping claws 57, 57 are opened, the concrete molded body S is placed on the pile conveyor 70, and the concrete molded body S is moved by the pile conveyor 70.
is carried out to the next process line. Note that after removing the concrete molded body S from the gripping claws 57, 57,
Rotating the rotating frame 56 upward and moving the traveling frame 47 using the cylinder device 48 to move the gripping claws 57, 57 to the moving path K side again, repeating the demolding operation by performing the same operation as described above. conduct.

The demolding work performed as explained above is performed by demolding equipment A.
Each cylinder device 42, 46, 48, 52, 5
9 and 66 can be performed automatically, making demolding work extremely easy compared to conventional demolding work that was performed manually by workers using tools. This makes it possible to mechanize demolding work and save labor.

By the way, in the above embodiment, the pedestal 30 includes two gripping mechanisms 34 and two lever release mechanisms 32.
However, the number of gripping mechanisms 32 and lever release mechanisms 34 provided on the pedestal 30 may be any number as long as it is one or more. Although the mechanism for closing the double-sided formwork used in the above embodiments is omitted in the drawings, it may be constructed using a locking device with a locking clip or a fastening device using bolts and nuts, etc. You can choose freely.

``Effects of the invention'' As explained above, the present invention provides a rotating frame that can freely rotate up and down on a stand installed on the side of the movement path of the formwork, and uses this rotating frame to move the formwork. Because the structure is equipped with a moving mechanism that brings it closer to the path and gripping claws that grip the concrete molded body on the rotating frame, if the formwork moves to the side of the pedestal during the manufacturing process of the concrete molded body, , bring the rotary frame close to the formwork and grip the concrete molded body with the gripping claws, move the rotary frame away from the formwork to remove the concrete molded body from the formwork, rotate the rotary frame and proceed to the next process. By carrying it out, demolding work can be performed. and,
If the demolding work is performed using a demolding device like this, both the work of grasping and moving the concrete molded body can be done without manual effort, so it is possible to mechanize the demolding work and save labor. This has the effect of drastically reducing the labor burden on workers.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a plan view, Figure 2 is a side view, and Figure 3 is a side view.
The figure is a perspective view showing a state in which a concrete molded body is taken out from the expanded formwork, FIG. 4 is a plan view of the lever release device, and FIG. 5 is a side view of the lever release device.
Fig. 6 is a side view showing the state in which the formwork for demolding is installed on the base by applying one embodiment of the present invention, and Fig. 7 shows the state in which the expanded formwork is set on the base. The plan view and FIG. 8 are explanatory diagrams showing a conventional example of a process for manufacturing a concrete molded body. S...Concrete molded body, K...Movement route,
1... Formwork, 10, 11, 12... Arc plate, 30
... mount, 31 ... first moving mechanism, 33 ... first
Moving mechanism, 42... Cylinder device, 46... Cylinder device, 48... Cylinder device, 52... Cylinder device, 59... Cylinder device, 66... Cylinder device, 56... Rotating frame, 57... Gripping nail.

Claims (1)

[Scope of utility model registration request] A formwork that has an expandable vertically divided cylindrical shape and is constructed by rotatably connecting a plurality of circular arc plates to each other, and is used to form a long concrete molded body. A device for taking out and demolding a concrete molded body from a frame, comprising a pedestal installed on the side of the movement path of the formwork, and a turn provided on the pedestal so as to be vertically rotatable facing the movement path side. A movable frame, a moving mechanism that is attached to the pedestal and causes the rotary frame to approach the formwork, and a gripping claw that is attached to the rotary frame and grips the concrete molded body. Features: Demolding equipment for concrete molded bodies.